IContentHeader.cs

using System;
using System.Collections.Generic;
using System.Security.Cryptography.X509Certificates;
using System.Threading.Tasks;
using Waher.Runtime.Inventory;
 
namespace Waher.Content
{
    public interface IContentHeader
    {
        string[] UriSchemes
        {
            get;
        }
 
        bool CanHead(Uri Uri, out Grade Grade);
 
        Task<ContentResponse> HeadAsync(Uri Uri, X509Certificate Certificate,
            EventHandler<RemoteCertificateEventArgs> RemoteCertificateValidator, 
            params KeyValuePair<string, string>[] Headers);
 
        Task<ContentResponse> HeadAsync(Uri Uri, X509Certificate Certificate,
            EventHandler<RemoteCertificateEventArgs> RemoteCertificateValidator, 
            int TimeoutMs, params KeyValuePair<string, string>[] Headers);
    }
}